Yes, however, they first made their hardware standard compliant rather than making their driver open source. The open source part came later, starting with CPU

Yes, however, they first made their hardware standard compliant rather than making their driver open source. The open source part came later, starting with CPU and chipset support, then Ethernet, then GPUs IIRC. The biggest and sweetest side-effect is Desktop/Personal use Linux support as long as the hardware doesn't do anything janky, or too janky.